745074642472 has 8 divisors (see below), whose sum is σ = 1397014954650. Its totient is φ = 372537321232.

The previous prime is 745074642469. The next prime is 745074642517. The reversal of 745074642472 is 274246470547.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 604559121156 + 140515521316 = 777534^2 + 374854^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46567165147 + ... + 46567165162.

Almost surely, 2^745074642472 is an apocalyptic number.

It is an amenable number.

745074642472 is a deficient number, since it is larger than the sum of its proper divisors (651940312178).

745074642472 is a wasteful number, since it uses less digits than its factorization.

745074642472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93134330315 (or 93134330311 counting only the distinct ones).

The product of its (nonzero) digits is 10536960, while the sum is 52.

The spelling of 745074642472 in words is "seven hundred forty-five billion, seventy-four million, six hundred forty-two thousand, four hundred seventy-two".